Import Question JSON

Current Question (ID: 18744)

Question:

$\text{According to Crystal Field Theory (CFT), the compound, among the following, that forms a colored complex is:}$

Options:

1. $[\text{Ti} (\text{H}_2\text{O})_6]^{4+}$
2. $[\text{Cr} (\text{NH}_3)_6]^{3+}$
3. $\text{K} [\text{V} (\text{F})_6]$
4. $(\text{NH}_4)_2 [\text{TiCl}_6]$

Solution:

$\text{C.F.T = d}^1 \text{ to d}^9$ $\text{Colour = d}^1, \text{d}^9$ $\text{Colourless = d}^0, \text{d}^{10}$ $T_1 = 22 = 4s^23d^2$ $T_1^{+4} = 4s^03d^0$ $\text{It has 3d}^0 \text{ configuration, hence, it has colourless}$ $V^{+5}$ $23 = 4s^23d^3$ $V^{+5} = 4s^03d^0$ $\text{It has 3d}^0 \text{ configuration. Hence, colourless.}$ $\text{Cr} = 4s^13d^5$ $\text{Cr}^{+3} = 4s^03d^3$ $\text{It has d electron hence, show colour.}$

Import JSON File

Upload a JSON file containing LaTeX/MathJax formatted question, options, and solution.

Expected JSON Format:

{
  "question": "The mass of carbon present in 0.5 mole of $\\mathrm{K}_4[\\mathrm{Fe(CN)}_6]$ is:",
  "options": [
    {
      "id": 1,
      "text": "1.8 g"
    },
    {
      "id": 2,
      "text": "18 g"
    },
    {
      "id": 3,
      "text": "3.6 g"
    },
    {
      "id": 4,
      "text": "36 g"
    }
  ],
  "solution": "\\begin{align}\n&\\text{Hint: Mole concept}\\\\\n&1 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\text{ moles of carbon atom}\\\\\n&0.5 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\times 0.5 \\text{ mol} = 3 \\text{ mol}\\\\\n&1 \\text{ mol of carbon} = 12 \\text{ g}\\\\\n&3 \\text{ mol carbon} = 12 \\times 3 = 36 \\text{ g}\\\\\n&\\text{Hence, 36 g mass of carbon present in 0.5 mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6].\n\\end{align}",
  "correct_answer": 4
}